Rajya Sabha Chairman Mohammed Hamid Ansari has said 22nd of March every year is celebrated as World Water Day. Making a reference in the House on the occasion, he said this year, the day is dedicated to the theme Waste Water, which will serve to highlight waste water as a valuable resource and its safe management as an efficient investment in the health of humans and ecosystem. <br/><br/>He said the day serves as a unique occasion to remind everybody to reduce the usage of freshwater and treat and reuse waste water for irrigation purposes in agriculture, for cooling systems in industries and for the creation of green spaces in homes and cities. <br/><br/>The Chairman said the theme is very much relevant for India in the current scenario, where climate change and burgeoning urban population is gradually depleting the ground water tables and indiscriminate release of effluents and untreated waste water is polluting fresh water resources. <br/><br/>He sought support of the members in the conservation of fresh water resources for the availability of sufficient potable water for all and increased water recycling for the preservation of the valuable natural resource for future generations.